<template>
  <div id="app">

    <!-- 单标签和双标签均可以 -->
    <router-view/>

  </div>
</template>

<script>

</script>

<style lang="less">
  .box {
    width: 200px;
    height: 200px;
    background-color: palegoldenrod;
  }

</style>
